| 单词 | parametric equation | 
| 释义 | > as lemmasparametric equation   parametric equation  n. any of a set of equations each of which expresses one of the coordinates of a curve or surface as a function of one or more parameters (parameter n. 3b). ΚΠ 1902    Trans. Amer. Math. Soc. 3 442  				The parametric equation of the involution will be [etc.]. 1942    C. H. Lehmann Analyt. Geom. xi. 230  				Find the rectangular equation of the curve whose parametric equations are x = 2 + 3 tan θ, y = 1 + 4 sec θ. 1993    Harper's Mag. Sept. 72/2  				But since here, on my bedroom's floor, a circle was rolling around what was itself the circumference of a circle, the cycloid's standard parametric equations were no longer applicable. < as lemmas  | 
	
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